CN109904367A - A kind of ventilative relief valve applied to power battery pack - Google Patents
A kind of ventilative relief valve applied to power battery pack Download PDFInfo
- Publication number
- CN109904367A CN109904367A CN201910216523.2A CN201910216523A CN109904367A CN 109904367 A CN109904367 A CN 109904367A CN 201910216523 A CN201910216523 A CN 201910216523A CN 109904367 A CN109904367 A CN 109904367A
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- Prior art keywords
- ventilative
- valve
- shield
- valve base
- ventilated membrane
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Gas Exhaust Devices For Batteries (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to new-energy automobile field more particularly to a kind of ventilative relief valves applied to power battery pack.Including vent valve shield, ventilated membrane, ventilative valve base, the ventilated membrane is sleeved between the vent valve shield and ventilative valve base, the vent valve protection cover main body is the cavity body structure that lower part is equipped with opening, the intracavitary edge of air valve shield is provided with the clamping structure for being clamped ventilative valve base, the ventilative valve base outer edge fits with the vent valve shield inner wall, and that spacing is put on the vent valve shield side wall between the vent valve shield and ventilative valve base is provided with multiple perforative air holes；Quick and easy for installation, the ventilative relief valve loading of the present invention is held successfully on the battery tank shell of hole location, installation can be completed by installing a fastener in cabinet, installation process time-consuming is short.
Description
Technical field
The present invention relates to new-energy automobile field more particularly to a kind of ventilative relief valves applied to power battery pack.
Background technique
The power battery pack for being mounted on vehicle bottom needs to reach IP67 degree of protection, since battery is in charge and discharge process
The influence of the factors such as battery core fever and the variation of vehicle external environment needs to realize inside and outside cabinet in gas breathing ability guard box body
External pressure dynamic balance, to guarantee the reliability of sealing structure；In addition the battery in the case where the extreme cases such as thermal runaway occur for battery core monomer
Packet will be able to achieve Quick air-discharge pressure release.
Current battery is wrapped mostly quick-fried using the ventilative relief valve of spring blasting type or the ventilative relief valve of thimble blasting type, thimble-type
The burst pressure of broken valve is larger, and burst pressure consistency is poor, is interlinked to the outside in ventilated membrane rupture rear box, external a large amount of oxygen
Participating in reaction into cabinet can make inside battery burn again；There are pressure release latus rectum is small and foreign matter for spring open-type explosive valve
Into the shortcomings that influencing sealing reliability；Consider battery system light-weight design purpose, battery box cover is mostly thin-walled composite material
Structure, case lid be difficult to bear be more than 10kPa pressure, above two ventilative relief valve is difficult to ensure in battery core thermal runaway process
Pressure is less than 10kPa in cabinet；The valve of a kind of novel collection ventilating and quick pressure releasing functions is needed to guarantee power
The safety of battery system.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, adapt to reality and need, and provide a kind of applied to power electric
The ventilative relief valve of Chi Bao.
In order to achieve the object of the present invention, the technical solution adopted by the present invention are as follows: a kind of applied to the saturating of power battery pack
Gas relief valve, including vent valve shield 1, ventilated membrane 2, ventilative valve base 3, it is anti-that the ventilated membrane 2 is sleeved on the vent valve
Between shield 1 and ventilative valve base 3,1 main body of vent valve shield is the cavity body structure that lower part is equipped with opening, the air valve
The intracavitary edge of shield 1 is provided with the clamping structure for being clamped ventilative valve base 3, ventilative 3 outer edge of valve base and institute
It states 1 inner wall of vent valve shield to fit, 1 side of vent valve shield between the vent valve shield 1 and ventilative valve base 3
That spacing is put on wall is provided with multiple perforative air holes 14；The edge of the ventilated membrane 2 is fitted in 1 side of vent valve shield
Edge, ventilative 3 main body of valve base structure annular in shape are provided with pressure release gas vent 35 on the anchor ring of the air valve pedestal 3, described
It is venthole among ventilative valve base 3, the venthole both ends of the ventilative valve base 3 are respectively arranged with location structure 31 and close
Flange face 36 is sealed, sticks on 36 upper end of sealing flange face in the middle part of ventilated membrane under normality, so that its middle part is arched upward upwards；The positioning
It is fixed thereto that structure 31 is inserted into battery box cover 5.
Mounting structure 34 is provided on the outside of the location structure 31, the mounting structure 34 is screw thread, the location structure
31 are inserted into battery box cover 5 and are fixed on battery box cover 5 by standard nut 7.
Protective grille 37 is provided on the venthole.
The guide frame 11 for shunting is provided at the top of the vent valve shield 1.
It is provided with multiple external water stream, hard object or ultraviolet lights etc. of blocking on the vent valve shield 1 and damages ventilated membrane 2
Roll guard 13, the roll guard 13 are oppositely arranged with air hole 14, and 13 width of roll guard is greater than 14 width of air hole.
The clamping structure includes installation position limiting structure 12 and buckle 15, and the vent valve between adjacent roll guard 13 is anti-
Installation position limiting structure 12 is provided on shield 1,12 height of installation position limiting structure is greater than roll guard 13, each installation
12 upper end of position limiting structure is provided with a buckle 15, and ventilative 3 outer ring of valve base is stuck in installation position limiting structure 12 and buckle
Between 15.
31 outside screw of location structure is combined with a circle sealing element 4,4 above and below of sealing element respectively with it is ventilative
Valve base 3, battery box cover 5 are bonded.
Multi-turn exterior protection fence 32 is provided on the outside of the sealing element 4, the multi-turn exterior protection fence 32 is in multilayer
Annular arrangement and every layer of exterior protection fence 32 is staggered forms a safeguard structure protected sealing element 4.
Described to use e-PTFE film, valve base of breathing freely is plastic cement integrated injection molding.
2 edge of ventilated membrane includes sweat soldering, ultrasonic bonding with the fixed mode being bonded in ventilative 3 edge of valve base
And 9495LE glue sticking is fixed.
The beneficial effects of the present invention are:
1. quick and easy for installation, the ventilative relief valve loading of the present invention is held successfully on the battery tank shell of hole location, by cabinet
Installing a fastener can be completed installation, and installation process time-consuming is short；
2. versatility is good, the sealing element of the ventilative relief valve of the present invention passes through the position limiting structure breathed freely on valve base and controls compression
Amount, is suitable for the mounting object of different-thickness and material；Ventilative relief valve design avoids internal ponding influence ventilated membrane and breathes freely,
Valve body can be installed with horizontal or vertical direction；
3. good reliability, the ventilative relief valve of the present invention can prevent the foreign of any direction from piercing bad ventilated membrane, there is protection
Fence stops the damage sealing element such as high-pressure flush, air-flow, illumination and ventilated membrane；
4. protective performance is excellent, IP67 degree of protection can be met；
5. can quick pressure releasing, the certain value that pressure increases in cabinet can be such that ventilated membrane deforms by certain shapes, open quick
Cabinet is discharged by the multiple relief holes breathed freely on valve base in pressure release passage, most of gas；
6. safety is good, the ventilative pressure release valve base pressure-relief flow guide structure of the present invention can avoid thermal runaway process ejection flare and draw
Vehicle is fired, while can voluntarily close pressure release passage after pressure release, reduces the convection current of cabinet inner air and outer air, utmostly postponing battery encloses
The fiery time；
7. pressure release cracking pressure is low, the ventilated membrane of the ventilative relief valve of the present invention is fixed on vent valve Base edge, bigger
Ventilative membrane area can be such that the deflection of ventilated membrane increases at the same pressure, realize ventilated membrane and sealing flange in lower pressure
Pressure release passage is opened in face separation；
Detailed description of the invention
The present invention is described further with case study on implementation with reference to the accompanying drawing.
Fig. 1 is the perspective view of the explosion of the ventilative relief valve of the present invention；
Fig. 2 is the structural schematic diagram of vent valve protective cover；
Fig. 3, Fig. 4 are the structural schematic diagram of ventilative valve base；
Fig. 5 is that ventilated membrane is mounted on vent valve base schematic diagram；
Fig. 6 is assembly front view of the present invention；
Fig. 7, Fig. 8, Fig. 9, Figure 10 are A-A cross-sectional view of the present invention；
Fig. 7 is the shape of installation condition ventilated membrane of the present invention；
Fig. 8 is that ventilated membrane of the present invention is normally vented outwards state；
Fig. 9 is the state that ventilated membrane of the present invention will open pressure release passage；
Figure 10 is the state that ventilated membrane of the present invention opens quick pressure releasing；
Figure 11 wraps scheme of installation in power battery for the present invention；
Figure 12 is the cross-sectional view of installation condition on cabinet of the present invention；
Figure 13 is the present invention and other types vent valve pressure release curve comparison；
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
Referring to Fig. 1-13.
In the embodiment of the present invention description, it is to be understood that term " on ", "lower", "inner", the indicating positions relationship such as "outside"
For positional relationship based on the figure, only for ease of description the present invention rather than require the present invention that must close with specific position
Series structure, therefore should not be construed as limiting the invention.
In the description of the present invention, term " installation " shall be understood in a broad sense, and may be a fixed connection, is also possible to detachably
Connection, can be connected directly or be indirectly connected by intermediate media；This field and professional technician can be as the case may be
Understand above-mentioned term in concrete meaning of the invention；
The invention discloses a kind of ventilative relief valves applied to power battery pack, including vent valve shield 1, ventilated membrane
2, ventilative valve base 3, the ventilated membrane 2 are sleeved between the vent valve shield 1 and ventilative valve base 3, the vent valve
1 main body of shield is the cavity body structure that lower part is equipped with opening, and the intracavitary edge of the air valve shield 1 is provided with ventilative for being clamped
The clamping structure of valve base 3, ventilative 3 outer edge of valve base fit with 1 inner wall of vent valve shield, described ventilative
That spacing is put on 1 side wall of vent valve shield between valve shield 1 and ventilative valve base 3 is provided with multiple perforative air holes
14；The edge of the ventilated membrane 2 is fitted in 1 edge of vent valve shield, ventilative 3 main body of valve base structure annular in shape, institute
It states and is provided with pressure release gas vent 35 on the anchor ring of air valve pedestal 3, be venthole, the vent valve among the ventilative valve base 3
The venthole both ends of pedestal 3 are respectively arranged with location structure 31 and sealing flange face 36, stick in the middle part of ventilated membrane under normality
36 upper end of sealing flange face, so that its middle part is arched upward upwards；It is fixed thereto that the location structure 31 is inserted into battery box cover 5.
Mounting structure 34 is provided on the outside of the location structure 31, the mounting structure 34 is screw thread, the location structure
31 are inserted into battery box cover 5 and are fixed on battery box cover 5 by standard nut 7.
Protective grille 37 is provided on the venthole.
The guide frame 11 for shunting is provided at the top of the vent valve shield 1.
It is provided with multiple external water stream, hard object or ultraviolet lights etc. of blocking on the vent valve shield 1 and damages ventilated membrane 2
Roll guard 13, the roll guard 13 are oppositely arranged with air hole 14, and 13 width of roll guard is greater than 14 width of air hole.
The clamping structure includes installation position limiting structure 12 and buckle 15, and the vent valve between adjacent roll guard 13 is anti-
Installation position limiting structure 12 is provided on shield 1,12 height of installation position limiting structure is greater than roll guard 13, each installation
12 upper end of position limiting structure is provided with a buckle 15, and ventilative 3 outer ring of valve base is stuck in installation position limiting structure 12 and buckle
Between 15.
31 outside screw of location structure is combined with a circle sealing element 4,4 above and below of sealing element respectively with it is ventilative
Valve base 3, battery box cover 5 are bonded.
Multi-turn exterior protection fence 32 is provided on the outside of the sealing element 4, the multi-turn exterior protection fence 32 is in multilayer
Annular arrangement and every layer of exterior protection fence 32 is staggered forms a safeguard structure protected sealing element 4.
Described to use e-PTFE film, valve base of breathing freely is plastic cement integrated injection molding.
2 edge of ventilated membrane includes sweat soldering, ultrasonic bonding with the fixed mode being bonded in ventilative 3 edge of valve base
And 9495LE glue sticking is fixed.
The present invention discloses a kind of ventilative relief valve applied to power battery pack, including ventilative valve base, vent valve protection
Lid, sealing element and ventilated membrane, the ventilated membrane and sealing element are mounted on ventilative valve base, and vent valve protective cover is installed on ventilative
Protective action is played to ventilated membrane on valve base；Ventilative valve base has air hole for quick pressure releasing under extreme case, vent valve bottom
There is positioning and mounting structure realization to be reliably fixed on seat in battery pack, have on ventilative valve base position limiting structure for control sealing
The decrement of part, to guarantee to seal consistency and reliability；There is protective grille to prevent ventilated membrane by foreign matter on ventilative valve base
It pierces through；There is sealing flange to realize external seal in vent valve on ventilative valve base；There is air hole to realize on vent valve protective cover ventilative
External respiration in valve, the design of vent valve protective cover have roll guard to prevent foreign object from piercing through vent valve, preventing high-pressure flush or high speed gas
Stream damages ventilated membrane, and design has guide frame to make ventilated membrane by certain shapes dilatancy on vent valve protective cover；It is described ventilative
Film is eptfe film；
As shown in Figure 1, a kind of ventilative relief valve includes vent valve shield 1, ventilated membrane 2, ventilative valve base 3 and sealing element
4；
As shown in Fig. 2, the vent valve shield 1 include guide frame 11, installation position limiting structure 12, roll guard 13,
Air hole 14 and buckle 15；The guide frame 11 is used to control the expansion direction of ventilated membrane 2, installs position limiting structure 12 and buckle
15 guarantee the rigging position of ventilative valve base 3 and vent valve shield 1 and are kept fixed state, and air hole 14 realizes that vent valve is anti-
The inside and outside ventilation of shield；The roll guard 13 can stop external water stream, hard object or ultraviolet light etc. to damage ventilated membrane 2；
As shown in Figure 3, Figure 4, the ventilative valve base 3 includes location structure 31, exterior protection fence 32, position limiting structure
33, mounting structure 34, pressure release gas vent 35, sealing flange face 36 and protective grille 37；The exterior protection fence 32 and limit
Structure 33 forms labyrinth structure and protects sealing element 4, while can prevent internal flare from spraying；
As shown in Figure 4, Figure 5, preferably ventilated membrane 2 is mounted on ventilative valve base 3, ventilated membrane 2 preferably uses e-
PTFE film, the preferred plastic cement integrated injection molding of valve base of breathing freely；A-quadrant ventilated membrane 2 can be used with ventilative valve base in diagram
The technique of this field maturation such as sweat soldering, ultrasonic bonding realize that reliable fitting is fixed, or pass through the 9495LE of 3M company
Glue sticking is fixed；B area is answered since the ventilated membrane 2 that installation condition stretches can apply certain compress to sealing flange face 36 in diagram
Power, and the material of ventilated membrane 2 has good compliance, ventilated membrane 2 and sealing flange face 36 can form sealing area, to reinforce
Sealing reliability between ventilated membrane 2 and sealing flange face 36, one layer of low viscosity sealing of coating preferably on sealing flange face 36
Medium, such as 5188 anaerobic adhesive of Loctite commonly used in the art；
As shown in Figure 6, Figure 7, the installation condition on ventilative valve base 3 of ventilated membrane 2 is realized close with sealing flange face 36
Envelope, sealing element 4 realize the mounting structure 34 of ventilative valve base 3 and the sealing of mounting surface；Ventilative 3 inside of valve base and the external world
It can only realize that ventilating, vent valve shield 1 realize inside and outside ventilation by multiple air holes 14 by ventilated membrane 2；
As shown in figure 8, gas expansion causes box house pressure to increase, cabinet after power battery pack internal temperature increases
By ventilated membrane 2 toward 1 internal flow of vent valve shield, gas further passes through air hole 14 and flow to external rings interior gas
Border；If power battery pack internal temperature reduces, ambient outside air is flowed into cabinet by air hole 14 and ventilated membrane 2
Portion realizes internal and external pressure balance；
As shown in figure 9, inside and outside differential pressure will affect the deflection of ventilated membrane 2, pressure difference causes more greatly the deflection of ventilated membrane 2
Bigger, when box house pressure increases rapidly, the outer external expansion of ventilated membrane 2, the guide frame 11 on vent valve shield 1 can be controlled
The expansion direction of ventilated membrane 2 processed；Diagram state ventilated membrane draw angle is conducive to overcome the sealing medium at sealing flange face 36
Tension reaches setting burst pressure, and further expansion can separate ventilated membrane 2 with sealing flange face 36；As shown in Figure 10, in cabinet
Portion's pressure sharply increases, and reaches burst pressure, and the expansion of ventilated membrane 2 is separated with sealing flange face 36, and box house bulk gas is logical
The multiple pressure release gas vents 35 crossed on ventilative valve base 3 flow to external environment, while portion gas is flowed to by ventilated membrane 2
External environment is flow to from air hole 14 again inside vent valve shield 1；The flow area of increase ensures that pressure release is rapid, while thoroughly
1 inner surface structure of air valve shield limits the rupture of 2 transition deformation of ventilated membrane, the ventilated membrane 2 after cabinet inside and outside differential pressure reduces
Elasticity is restored to be bonded ventilated membrane 2 with sealing flange face 36 again, reduces the convection current of cabinet inner air and outer air, can reduce external oxygen
It participates in reacting into cabinet；
As shown in Figure 11, Figure 12, the ventilative relief valve of the present invention can be fixed on battery box cover 5 by standard nut 7, equally
The ventilative relief valve of the present invention can be fixed on Battery case 6；Installation and positioning structure 31 on ventilative valve base 3 makes installation process
Ventilative valve base 3 does not rotate；Position limiting structure 33 on installation condition vent valve valve base 3 is bonded with battery box cover 5, is guaranteed
The decrement of sealing element 4 is design object, and sealant 4 realizes the reliable close of 3 installation interface of battery box cover 5 and ventilative valve base
Envelope；Exterior protection fence 32 and position limiting structure 33 form guard ring protection sealing element 4 by external interference (such as high pressure water flow, purple
Outside line irradiation, foreign matter etc.) damage, promote long-term reliability；
As shown in figure 13, show that 3 sections of ventilative relief valves are separately mounted to the fooled monomer electricity of a typical power battery pack
The variation of thermal runaway situation lower box internal pressure, clear space 136L in battery pack occur for core, and battery core produces gas 420L in 15s；Figure
13 curve a illustrate pressure history in the cabinet of installation spring blasting type relief valve, and spring blasting type relief valve can be
It is set in 3kPa pressure and opens pressure relief opening, but movable valve opening travel is directly proportional with internal pressure, it is logical that low pressure opens pressure release
Diameter is small, and pressure release flow is smaller, and pressure will continue to increase until enough pressure release flows increase pressure no longer in cabinet, and analysis is aobvious
Show that the surge pressure in installation spring blasting type pressure release valve housing can be more than 8kPa, and pressure release speed is slower；
Figure 13 curve b illustrates pressure history thimble in the cabinet of installation thimble blasting type relief valve, thimble explosion
Formula relief valve is designed as ventilated membrane under 7kPa pressure and ruptures, and then passes through the pressure release passage quick pressure releasing of diameter 20mm, thimble is quick-fried
Quickly, but vibration and the false triggering of air pressure influence factor puncture ventilated membrane to pressure release speed in order to prevent after broken formula relief valve explosion, this
The burst pressure of kind valve is difficult to be set to lower numerical value；
Figure 13 curve c illustrates pressure history in the cabinet of the ventilative relief valve of the installation present invention, and the present invention is ventilative to let out
Pressure valve can realize that ventilated membrane 2 is separated with sealing flange face 36 in about 2kPa, and pressure can control within 3kPa in cabinet, real
Existing quick pressure releasing characteristic；Specific critical separating pressure and sealing medium, the initial tensile amount of ventilated membrane 2, the springform of ventilated membrane 2
The correlations such as amount.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, are similarly included in
In scope of patent protection of the invention.
Claims (10)
1. a kind of ventilative relief valve applied to power battery pack, it is characterised in that: including vent valve shield (1), ventilated membrane
(2), it breathes freely valve base (3), the ventilated membrane (2) is sleeved between the vent valve shield (1) and ventilative valve base (3),
Vent valve shield (1) main body is the cavity body structure that lower part is equipped with opening, the intracavitary edge setting of air valve shield (1)
There are the clamping structure for being clamped ventilative valve base (3), ventilative valve base (3) outer edge and the vent valve shield
(1) inner wall fits, point on vent valve shield (1) side wall between the vent valve shield (1) and ventilative valve base (3)
Spacing is provided with multiple perforative air holes (14)；The edge of the ventilated membrane (2) is fitted in vent valve shield (1) side
Edge, ventilative valve base (3) main body structure annular in shape are provided with pressure release gas vent on the anchor ring of the air valve pedestal (3)
It (35), is venthole among the ventilative valve base (3), the venthole both ends of the ventilative valve base (3) are respectively arranged with fixed
Bit architecture (31) and sealing flange face (36) stick on sealing flange face (36) upper end in the middle part of ventilated membrane under normality, so that its
It arches upward upwards at middle part；It is fixed thereto that the location structure (31) is inserted into battery box cover (5).
2. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: the positioning
It is provided with mounting structure (34) on the outside of structure (31), the mounting structure (34) is screw thread, and the location structure (31) is inserted into
It is fixed on battery box cover (5) in battery box cover (5) and by standard nut (7).
3. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: the outlet
Protective grille (37) are provided on hole.
4. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: described ventilative
The guide frame (11) for shunting is provided at the top of valve shield (1).
5. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: described ventilative
Multiple roll guards for blocking the damage such as external water stream, hard object or ultraviolet light ventilated membrane (2) are provided on valve shield (1)
(13), the roll guard (13) is oppositely arranged with air hole (14), and roll guard (13) width is greater than air hole (14) width
Degree.
6. a kind of ventilative relief valve applied to power battery pack according to claim 5, it is characterised in that: the clamping
Structure includes installation position limiting structure (12) and buckles (15), on the vent valve shield (1) between adjacent roll guard (13)
It is provided with installation position limiting structure (12), the installation position limiting structure (12) is highly greater than roll guard (13), each installation
Position limiting structure (12) upper end is provided with a buckle (15), and ventilative valve base (3) outer ring is stuck in installation position limiting structure
(12) between buckle (15).
7. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: the positioning
Structure (31) outside screw is combined with a circle sealing element (4), sealing element (4) above and below respectively with ventilative valve base (3),
Battery box cover (5) fitting.
8. a kind of ventilative relief valve applied to power battery pack according to claim 7, it is characterised in that: the sealing
Be provided with multi-turn exterior protection fence (32) on the outside of part (4), the multi-turn exterior protection fence (32) arrange in multi-layer annular and
Every layer of exterior protection fence (32) is staggered, forms a safeguard structure protected sealing element (4).
9. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: the use
E-PTFE film, valve base of breathing freely are plastic cement integrated injection molding.
10. a kind of ventilative relief valve applied to power battery pack according to claim 1, it is characterised in that: described
Air film (2) edge includes sweat soldering, ultrasonic bonding and 9495LE with the fixed mode being bonded in ventilative valve base (3) edge
Glue sticking is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216523.2A CN109904367B (en) | 2019-03-21 | 2019-03-21 | Be applied to ventilative relief valve of power battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910216523.2A CN109904367B (en) | 2019-03-21 | 2019-03-21 | Be applied to ventilative relief valve of power battery package |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109904367A true CN109904367A (en) | 2019-06-18 |
| CN109904367B CN109904367B (en) | 2021-11-12 |
Family
ID=66952847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910216523.2A Active CN109904367B (en) | 2019-03-21 | 2019-03-21 | Be applied to ventilative relief valve of power battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109904367B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111192989A (en) * | 2020-01-08 | 2020-05-22 | 深圳市欣旺达综合能源服务有限公司 | Battery compartment pressure relief device and battery compartment |
| CN112066057A (en) * | 2020-09-02 | 2020-12-11 | 广东金悦诚蓄电池有限公司 | Split butt-joint type safety valve of vehicle storage battery |
| CN112821005A (en) * | 2019-11-18 | 2021-05-18 | 伊利诺斯工具制品有限公司 | Mounting seat of pressure relief device |
| CN113400889A (en) * | 2021-06-29 | 2021-09-17 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle and electric heater, electric cavity and pressure balance structure thereof |
| WO2021253354A1 (en) * | 2020-06-18 | 2021-12-23 | 东莞新能安科技有限公司 | Explosion-proof valve, battery set shell with explosion-proof valve, and battery set |
| WO2022252108A1 (en) * | 2021-06-01 | 2022-12-08 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery and power-consuming apparatus |
| WO2023022487A1 (en) * | 2021-08-17 | 2023-02-23 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
| WO2023130924A1 (en) * | 2022-01-05 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Gas discharge device, battery cell, battery, and electric device |
| WO2024078743A1 (en) * | 2022-10-12 | 2024-04-18 | Eaton Intelligent Power Limited | Battery safety valve |
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| CN112821005A (en) * | 2019-11-18 | 2021-05-18 | 伊利诺斯工具制品有限公司 | Mounting seat of pressure relief device |
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| WO2021253354A1 (en) * | 2020-06-18 | 2021-12-23 | 东莞新能安科技有限公司 | Explosion-proof valve, battery set shell with explosion-proof valve, and battery set |
| CN112066057A (en) * | 2020-09-02 | 2020-12-11 | 广东金悦诚蓄电池有限公司 | Split butt-joint type safety valve of vehicle storage battery |
| WO2022252108A1 (en) * | 2021-06-01 | 2022-12-08 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery and power-consuming apparatus |
| EP4120448A4 (en) * | 2021-06-01 | 2023-01-18 | Contemporary Amperex Technology Co., Limited | End cover assembly, battery cell, battery and power-consuming apparatus |
| CN113400889A (en) * | 2021-06-29 | 2021-09-17 | 镇江海姆霍兹传热传动系统有限公司 | Electric vehicle and electric heater, electric cavity and pressure balance structure thereof |
| WO2023022487A1 (en) * | 2021-08-17 | 2023-02-23 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
| WO2023130924A1 (en) * | 2022-01-05 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Gas discharge device, battery cell, battery, and electric device |
| WO2024078743A1 (en) * | 2022-10-12 | 2024-04-18 | Eaton Intelligent Power Limited | Battery safety valve |
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